extension: new brand icon + refresh store listing to 41 rules

Swap the extension icons (16/32/48/128 + source SVG) to the new gold
kinpaku brand mark on a dark rounded square, replacing the old diagonal
stroke. Update STORE_LISTING.md: the detection count is now 41 (was 24),
and the WHAT IT DETECTS lists are refreshed to the current ruleset
(26 AI-slop + 15 quality rules).

Still v1.1.0 (not yet submitted to the Chrome Web Store).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

extension/STORE_LISTING.md

@@ -8,26 +8,32 @@ Detect AI slop and design anti-patterns in any web page. Open DevTools and see w
 
 ## Detailed description
 
-Impeccable detects 24 common UI anti-patterns directly in your browser. Open DevTools on any page and overlays instantly highlight issues, from AI-generated design tells to accessibility and quality problems.
+Impeccable detects 41 common UI anti-patterns directly in your browser. Open DevTools on any page and overlays instantly highlight issues, from AI-generated design tells to accessibility and quality problems.
 
 WHAT IT DETECTS
 
 AI slop (design tells that scream "AI made this"):
-- Side-tab accent borders
-- Gradient text on headings
+- Cream and beige "AI default" backgrounds
 - Purple/violet AI color palettes
-- Nested cards, monotonous spacing
-- Bounce/elastic easing
+- Gradient text on headings
+- Side-tab and rounded-border accent stripes
+- Nested cards, monotonous spacing, icon-tile stacks
+- Bounce and elastic easing, hover image zoom
 - Dark mode with glowing accents
-- Overused fonts, flat type hierarchy
+- Overused or single-family fonts, flat type hierarchy
+- Oversized H1s, extreme negative letter-spacing, italic-serif heroes
+- Uppercase eyebrows, repeated kickers, numbered section markers
+- Em-dash overuse, marketing buzzwords, "not just X, it's Y" cadence
+- Thin borders with wide drop shadows, repeating-stripe backgrounds
 
 Quality issues (general design and accessibility):
-- Low contrast text (WCAG AA)
+- Low contrast text (WCAG AA), gray text on colored backgrounds
 - Cramped padding, tight line height
 - Skipped heading levels
-- Line length too long
-- Tiny body text, justified text
-- Layout property animations
+- Line length too long, text running to the viewport edge
+- Tiny body text, justified text, all-caps body copy, wide letter-spacing
+- Layout-property animations, clipped overflow containers, text overflow
+- Broken images
 
 HOW IT WORKS
 

extension/icons/icon.svg

@@ -1,4 +1,7 @@
 <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 128 128">
   <rect width="128" height="128" rx="24" fill="#1a1a1a"/>
-  <line x1="76" y1="24" x2="52" y2="104" stroke="#f5f3ef" stroke-width="7" stroke-linecap="round"/>
+  <g transform="translate(24,24) scale(2.5)" fill="#ffba00">
+    <path d="M7 1 L18 1 L8 31 L7 31 Q1 31 1 25 L1 7 Q1 1 7 1 Z"/>
+    <path d="M22 1 L25 1 Q31 1 31 7 L31 25 Q31 31 25 31 L12 31 Z"/>
+  </g>
 </svg>